Search the Glossary
Search 1,751 glossary terms.
3d printing
Science / Engineering And Technology
3d printing is a way of making solid objects by adding thin layers of material on top of each other, guided by a digital 3D model on a computer.
45 degree angle
A 45 degree angle is an angle that measures exactly 45 degrees, which is half of a right angle (90 degrees) and is often called an "acute" or sharp angle.
abbreviation
Reading And Language Arts / Spelling And Word Patterns
An abbreviation is a shortened form of a word or phrase that is used in place of the full form, often with a period, to save space or time when reading and writing.
abolition
Social Studies / Us History Terms
Abolition is the movement to completely end a system of slavery or other unfair, forced control of people, especially the effort to end slavery in the United States before and during the Civil War.
abolitionist
Social Studies / Us History Terms
An abolitionist is a person who worked to end slavery, believing it was wrong and should be completely abolished by law and in practice.
absolute and relative location
Absolute and relative location are two ways to describe where a place is: absolute location gives the exact spot using a grid like latitude and longitude or a street address, while relative location explains where a place is compared to other places.
absolute value
Math / Number Types And Properties
Absolute value is the distance a number is from 0 on the number line, so it is always written as a nonnegative number, whether the original number was positive or negative.
abstract noun
Reading And Language Arts / Grammar
An abstract noun is a word that names an idea, feeling, quality, or state of being that you cannot see, hear, touch, taste, or smell, such as "happiness," "friendship," or "freedom."
abstraction
Technology And Computer Science / Coding And Web Design
Abstraction is a way of simplifying a complex computer task by hiding the small details and focusing on the main idea or steps that matter.
academic vocabulary
Reading And Language Arts / Vocabulary And Word Study
Academic vocabulary is the set of words used in school texts, lessons, and tests to talk about ideas, explain thinking, and complete academic tasks across subjects.
acceleration
Science / Forces Motion And Energy
Acceleration is the rate at which an object's velocity changes, which means how quickly it speeds up, slows down, or changes direction over time.
Can't find a term? Oli can explain any concept step by step.
Get Started Free